The name is an acronym for 'Searchable Log of All Conversation and Knowledge'. A cloud-based team collaboration tool for organizing and simplifying communication on a project. It is also available for desktop and mobile devices.

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First released August 2013
Developed by Slack Technologies, Inc.
Latest stable version Mac - 4.26.1 on May 4, 2022; Windows - 4.25.2 on April 11, 2022; iOS - 22.05.10 on May 9, 2022; Andr
Open-source No
Used by Student Loan Hero, Inc. Cat5 Commerce, LLC, TENOR

Interesting facts

When the product launched, 8000 people registered within the first 24 hours.


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